Best Open-Source Text-to-speech options.
Candidates with open-source, open-weight, downloadable pretrained, or self-hosted signals from source metadata. Automated ranking for TTS, voice generation, voice cloning, multilingual speech, and developer voice APIs. Rankings use existing source-backed radar data and do not invent prices, benchmark scores, release dates, or capabilities.
NVIDIA NIM Model Catalog
Highest automated fit score using source-backed task evidence and radar signals.
NVIDIA NIM Model Catalog
Strong candidate when the source metadata indicates API or hosted-service availability.
NVIDIA NIM Model Catalog
Strong candidate when open weights, GitHub, permissive license, or self-hosting signals are visible.
Osmantic/ODS
Strong candidate with fresh GitHub, Hub, Product Hunt, or radar momentum.
| # | Candidate | Type | Access | Source | Fit | Updated | Why it matched | Evidence |
|---|---|---|---|---|---|---|---|---|
| 01 | NVIDIA NIM Model CatalogNVIDIA inference platform | service | Free endpoint | Official inference catalog | Score75 | Jun 26, 2026 | Matched text-to-speech, text to speech; 3 source links; official inference catalog signal; access model: Free endpoint | build.nvidia.com |
| 02 | NVIDIA RivaNVIDIA API service | service | Paid API | Official service page | Score74 | Jun 26, 2026 | Matched text-to-speech, text to speech, tts; 2 source links; official service signal; access model: Paid API | developer.nvidia.com |
| 03 | Osmantic/ODSPython repository | repo | Open source | GitHub | Score63 | Jul 28, 2026 | Matched text-to-speech, text to speech; 1 source link; access model: Open source; open weights signal | github.com |
| 04 | gojargo/jargoGo repository | repo | Open source | GitHub | Score60 | Jul 20, 2026 | Matched text-to-speech, text to speech, tts; 1 source link; access model: Open source; open weights signal | github.com |
| 05 | ragibhasan/bangla_speech_corpus_v1ragibhasan model | model | Open weights | Hugging Face Models | Score59 | Sep 30, 2026 | Matched text-to-speech, text to speech; 2 source links; access model: Open weights; freshly updated | huggingface.co |
| 06 | AuraVixStudio/caeloPython repository | repo | Open source | GitHub | Score58 | Jul 8, 2026 | Matched text-to-speech, text to speech; 1 source link; access model: Open source; open weights signal | github.com |
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